Fumigating device



Jan. 18, 1938. w. c. PURDY FUMIGATING DEVICE Filed Jan. 14, 1936INVENTOR ZUZZZZam O. Pura ly BY P M W ATTORNEYS lb in esses PatentedJan. 18, 1938 ra s FATENT GFFICE 3 Claims.

This invention relates to fumigating devices, and particularly toimproved devices adapted to sup-ply desired fumigation to bags, boxes,or other containers of any size.

An object of the invention is to provide an improved fiunigating devicewhich may be applied to boxes, bags, or other large or small articles insuch a way that the fumigating material may be supplied at any time.

Another object of the invention is to provide a fumigating device in thenature of a cap adapted to be more or less permanently mounted andcoacting with a removable cartridge which is designed to carry thefumigating material.

An additional object is to provide a fumigating device which may use acartridge for supplying the fumigating material.

An additional and further object is to provide a fumigating devicewherein a cap is presented which may be quickly and easily applied to apaper bag, a box, or other object, and when so applied will present asubstantially air tight con nection with the bag or other article.

In the accompanying drawing:

Fig. 1 is a longitudinal vertical sectional view through a bag having anembodiment of the invention applied thereto;

Fig. 2 is an enlarged fragmentary sectional view through the center ofthe cap and certain associated parts shown in Fig. 1;

Fig. 3 is a view similar to Fig. 2 but showing a fumigating carryingcartridge;

Fig. 4 is a bottom plan View of the cap shown in Fig. 1;

Fig. 5 is an edge view of a foraminous plate which may be used inconnection with the cap shown in Fig. 2;

Fig. 6 is a fragmentary sectional view somewhat similar to Fig. 2 butshowing a modified form of the invention.

Referring to the accompanying drawing by numerals, I indicates a bagwhich may be an ordinary paper bag of any size or shape. This bag mayhave a fumigating device embodying the invention applied directlythereto, or the bag may be placed in a crate or box and the deviceapplied to the bag and box as a unit. This sometimes is desirable asboxes quite often become broken more or less during handling, with theresult that fumigating gases will escape. Where a paper bag lines thebox, a slight breaking of the box would not break the bag, andconsequently a fumigating gas in the bag would remain and perform itsdesired function. However, regardless of how the container is formed,the cap and associated parts forming the invention will functionproperly to give off gas or to supply gas to the contents of containersfor fumigating purposes.

As shown in Fig. 1, bag I is an ordinary paper bag and is supplied witha reinforcing bottom 2. This bottom may be corrugated paper, ordinarypasteboard, laminated wood, or other material which will provide meanswhereby the device may be connected to the bag. As shown in Fig. 6, aslightly modified structure is provided wherein a rather small ring 3 ofcorrugated paper or other material is secured to the bottom of the bagby adhesive and thereby presents ample thickness and ample strength forreceiving the cap 4. The cap 4, as shown in Fig. 2, is formed in twoparts, namely the inner part or section 5 and the outer part or section6. Section 5 is provided with a bottom I having an aperture 8, andradiating from this aperture is a number of slits 9 as shownparticularly in Fig. 4.

The bottom 7 is bent back upon itself to present a flange l6 whichmerges into a tubular threaded portion H. The threaded portion H isadapted to receive the threaded portion l2 of section 6, which sectionat the lower end as shown in Fig. 2 is provided with a flaring edge i3which extends outwardly radially almost as far as flange Hi. When thesections 5 and ii are screwed tightly together the flange ii] and 0 edgel3 will tightly pinch the reinforcing bottom 2 and also the bottom ofbag 1. If desired, glue or other sealing means may be provided near theedge of the aperture or hole M of mem ber 2 into which the flange Illand edge 3 extend when these parts are permanently positioned. Thisprovides a gas tight connection at this point.

Section 6 is provided with an inturned flange l5 which in effectproduces an aperture 16 through which the cartridge ll loosely extends.The cartridge ll is preferably made from one piece of sheet metal and isformed with a bottom I8 bent back at 19 to produce a flange, and saidflange merges into a tubular body 20. The body 20 has a threaded end 2|onto which the threaded cap 22 is screwed; The cartridge l! is adaptedto carry the disinfectant and may be supplied with loose cotton or waste23, and to this Waste is poured the liquid disinfectant. For an ordinarysize container, as for instance a bushel bag, approximately onetablespoonful of the disinfectant is ample, and as cap 22 is gas tightthe disinfectant will remain in the cartridge ll until cap 22 has beenremoved. As shown in Fig. 3, the

diameter of body 26 is larger than the aperture 8, and consequently theparts or prongs are bent up- Wardly as indicated at 25. When thecartridge is forced into position, this produces a certain frictionwhich holds the cartridge in place.

Most disinfecting material is more or less dangerous and consequentlyrailroads will not ordinarily transport the same with nuts, vegetables,and other articles which need fumigation. For this reason the cap l isformed as just described, and if desired may be filled with loose cottonor Waste, and then the article is shipped to the desired point. Thevarious cartridges I! are filled by experienced Workers and then sealedby screwing cap 22 in place, after which a desired supply of thesefilled cartridges are shipped under proper authority to the same personreceiving the bags and other articles. This person then unscrews cap- 22from the respective cartridges and forces the cartridges? into the caps4 as shown in Fig. 3, whereupon the gas from the disinfectant will fillthe bag or other container and secure the desired fumigating anddisinfecting action. If desired, instead of having a screw cap 22 astopper of any kind which will be substantially gas tight wouldbesatisfactory.

In all forms of the invention it will be observed that the container issubstantially sealed at all times both before and after the gas or otherfumigating material has been supplied. For instance, the cap 4 isadapted to be filled with loose cotton, and, if desired, a pastel ofpaper or other material could be placed over opening 8. Bag l with itscontents is then shipped to its desired point and at the desired pointsomeone could insert the cartridge H after cap 22 has been removed. Inthis way the articles being shipped are shipped in a substantiallysealed condition without an fumigating material therein. This willreadily comply with all the rules and regulations of the railroadcompanies and insurance companies. After the goods have arrived thefumigation may take place as above described.

I claim:

1. A fumigating structure for a container, comprising a pair ofinterlocking sections, and means for holding a fumigating material inplace, one of said sections presenting a bottom member having anaperture, a radiating flange and a threaded tubular body, the other ofsaid members presenting a threaded tubular body adapted to be screwedonto the first mentioned body, said second mentioned section having aflaring edge coacting with said flange for pinching the bottom of a bagor other article.

2. In a device of the character described, a cap comprising a tubularbody threaded substantially for its entire length, said body at one endmerging into an annular radiating flange, said flange 1 merging into abody having a centrally positioned aperture, and a plurality of slitsradiating from said aperture, said capbeing formed with an outsidesection having an innerextending flange, a tubular body screwed onto thefirst mentioned body, and a flaring edge coacting with said flange forpinching the bottom of a bag or other article.

3. In a device of the character described, a. cap formed with a bodyadapted to extend through the bottom of a bag or other article, meansforming part of the cap for clamping the same in place, said cap havingan apertured bottom formed'with radiating slits, and a iumigatingmaterialcarrying cartridge extending through said apertured bottom, saidcartridge being of a size greater in diameter than said aperture wherebyportions of said threaded body are moved out of the way when thecartridge is forced into position.

WILLIAM C. PURDY.

